async function* generate() {
    const results = await Promise.all([
        Promise.resolve(1),
        Promise.resolve(2),
        Promise.resolve(3), 
    ]);
    for (const result of results){
        console.log(`yield ${result}`);
        yield result;
    }
}
async function printValues() {
    const iterator = generate();
    for await (const value of iterator){
        console.log(`iterator value: ${value}`);
    }
}
printValues();
